Error "Active infection: Failed to install Kaspersky application. Your computer might be infected."

This article concerns Kaspersky applications version 20.0.14.1085 and earlier:

• Kaspersky Security Cloud
• Kaspersky Internet Security
• Kaspersky Anti-Virus
• Kaspersky Total Security
• Kaspersky Small Office Security
• Kaspersky Free

Issue

• Installation wizard returns the error "Active infection: Failed to install Kaspersky application. Your computer might be infected.".
• Installation wizard won't start. Nothing happens when you double-click the installer.
• Installation wizard starts but fails after several steps.
• Setup wizard won't start after the application is installed.

Сause

Malware prevents installation of a Kaspersky application.

Solution

1. Check your computer with Kaspersky Virus Removal Tool. For instructions, see this article.
2. If using Kaspersky Virus Removal Tool didn't help, try checking your computer with Kaspersky Rescue Disk. For instructions, see this article.
3. Check your computer for rootkits and bootkits using the  TDSSKiller tool. For instructions, see this article.

What to do if the issue persists

If the above solution didn't help, contact Kaspersky technical support by choosing the topic and filling out the form.

Technical support is not provided for Kaspersky Free. You can ask a question about your issue on the Forum or look it up in the existing topics.

Useful references

How to run a scan with Kaspersky Virus Removal Tool 2020
TDSSKiller tool for detecting and removing rootkits and bootkits
How to scan your computer with Kaspersky Rescue Disk 18